Answer:
x = 7
Step-by-step explanation:
Start by solving for
which is a common expression for both equations. Then in the first equation:

and in the second equation:

Now we make the two
expressions equal so we get:

Answer:
x = 7.8
Step-by-step explanation:
a^2 + b^2 = c^2
4^2 + 2^2 = c^2
16 + 4 = c^2
c^2 = 20
c = 4.5
a^2 + b^2 = c^2
a^2 + 4.5^2 = 9^2
a^2 + 20.25 = 81
a^2 = 81 - 20.25
a^2 = 60.75
a = 7.8
Answer:
10
Step-by-step explanation:
Let's break it down:
- We need to remove the third of ALL the cupcakes that got Vanilla Icing. 1/3 of 30 is 10. This means you need to subtract 10 from the original 30.
- This leaves 20 left
- Half of the remaining 20 will get Strawberry Icing.
- 1/2 of 20 is 10 (the amount getting Strawberry Icing)